Check-rower



UNITED STATES.

.PATENT OFFICE.

JAMES G. GIBSON, OF PEOBIA, ILLINOIS.

cHE CK-RO wERt SPECIFICATION forming part of Letters Patent No. 315,494,dated April 14, 1885.

.. Application filed October 6, 1884. N0 model.) 9

To all whom it may concern:

Be it known that I, JAMES G. GIBSON, of Peoria,- in the county of Peoriaand State of Illinois, have invented an Improved Check- Rower; and I dohereby declare that the following is a full, clear, and exactdescription thereof, reference being had to the annexed drawings, makinga part of this specification, in which like letters of reference referto like parts, and in which- Figure 1 represents a side elevationthereof; Fig. 2, a plan view of the same; Fig. 3, a sectional plan viewat x x in Fig. 1; Figs. 4 and 5, detail views.

This invention is in the line of check-rowers for corn-planters in whicha hooked rod is adapted to be intermittently. reciprocated through themedium of a tappet-wire andsuitable mechanism, the movement of said rodbeing transmitted to the'feed-slide of the planter through a lever and ablock with which the hook of said rod engages.

My invention appertains, mainly, to automatic means whereby either rodmay be detached from and the other connected to said block according towhich side of the planter the tappet-wire may be upon.

In the drawings. I show a portion of the transverse beam to which thecheck-rower mechanism is affixed, and show also the center piece and oneend portion of the mechanism, the other end being exactly the same.

I willfirst describe the means whereby'the hooked rod. is reciprocated.R is the said hooked rod, and It the similar rod running to thewire-operated mechanism at the other end of the transverse beam T. Thehub A, having four radial bifurcated arms, A, projecting therefrom, isrigidly fastened to the gear-wheel B, which mesheswith the one-halfsmaller pinion O. By the crank-pin 0 one end of the rod R is pivotallyattached to said pinion. The passage of the knots of the tappet-wiregives to the said four'armed hub an intermittent rotation, each movementof which is a quarterturn. The wheel B fast to said hub being twice thecircumference of the pinion 0 gives wit-h each quarter-turn asemi-revolution to said pinion, and thence the desired reciprocation tothe hooked rod R. The arms M, fixed to the end of the beam T, havefriction-pulleys M and fingers M control the passage of furcated arms A.

. .To control the movements of the fourarmed hub A, and stop the same atthe end of each quarter-turn, I affix to and beneath the gearwheel B asquare block, E. Against the periphery of said block rests the head ofthe spring-impressed pushbar D, broadly slotted near the head thereof tomake room for the bearings of the pinion O, as in Fig. 3. The spring f,by which said push-bar is kept against the box IE, is confined in thesemi-cy-\ lindrical cup F. Said springpresses against one end of saidcup and against the shoulder (1, formed on said push-bar. To increase ordiminish the tension of the spring, said cup F is secured to the plate Pby means of bolts passing through the longitudinally-slotted ears fprojecting from said cup F.

The bearings for thepinion U consist of the tubular lug G", projectingfrom the plate P. Said plate, which is cast as a part of the arms M, issecured to the beam T by means of the 1 bolts a and O, which also serveas pivotal fastenings for the gear B and pinion C.

It is evident that when the block E is turned and the gear-wheel B fastthereto, the corners of said block displace the bar D and compress thespring f until OHGQf said corners is directly between the two' axes ofthe gear B and pinion 0. As such corner passes said position theexpelling force of the spring helps said block E on around until thehead of the bar D rests fiat against the next face of said block, andretains it there with more or less I I the tappet-wire in thecorrectplace for the bitoo ways J is a three-armeddevicein the form of aninverted T. At the extremities of the cross-arms of said Tare eyes n,through which The height of said eyes pass the rods R R.

is so arranged that when one eye is depressed sufficiently to enable thehook of the rod held by said eye to enter a hole h of the block H, theother rod is raised by the other eye clear above the block, as inFig. 1. By rocking the T-pieceNin one direction or the other, eitherhooked rod B may be engaged with the block H and the other roddisconnected therefrom. To make such change automatic with the movementof either fourarmed hub A, I connect a link, a", with the arm N and eachrod R It. The connections for the links r with the rods R R consist ofdouble shoulders r", the necks between which fit loosely in slots B? inthe rods. The other ends of said links 1 are attached to the arm N bymeans of eyes T, formed at the ends of said links, and curved prongs n,formed at the end of said arm N. NVhen the arm N of the T-piece N isrocked toward one rod, as It, the slot R in said rod permits said rod toreciprocate back and forth without moving the link 1". By this positionof the arm N the other link, T, has its shouldered end brought againstthe near end of the slot which'it is in, and consequently when the rod,as It, is retracted by the move ment of its four-armed hub A the arm Nis pulled over toward it, it is lowered, the rod R is raised out of thehole h of the block H, and its hook settles down into the other hole hof the block H. Now, each stroke of the rod R reciprocates the block Hand the feed slide connected therewith.

When it is desired to detach one rod, R, and connect the other rod withthe block, the one to be disconnected must be left at its extremestroke, so that the block H shall be at its farther position from thefour armed wheel A.

To retain the T-piece N firmly in either of its two positions, I formtwo notches, L L, in the bearing-head K, Fig. 5, and adapt a smallprojection, on, to rest in the same and either of the same, according asto which side the T-piece is rocked. A spring, 112 abutting against thebearing-head K and the nut in of the bolt, presses said projection intoeither one of said notches, L, and holds with more or less firmness theT-piece in either of its desired positions.

- The lug m of the T-piece coming in contact with the ridges K on thebearing-head K, serves as a stop to limit the rock in either directionof said T-piece.

What I claim as my invention, and for which I desire Letters Patent, isas follows:

1. The four-armed hub A, gear-wheel B, and square block E, all rigidlyconnected together on the same axis, in combination with the pinion 0,the push-bar D, slotted to make room for the bearings of said pinion,shoulder d on said push-bar, semi cylindrical cup F, and springf in saidcup and about said bar, substantially as and for the purpose specified.

2. In combination with two rods adapted to be intermittentlyreciprocated and a block connected to the feedslide of a planter, a T-piece through eyes at the ends of the crossarms of which pass said rods,and links attached to the third arm of said. T-piece and connected tosaid rods with fastenings that permit alimited play thereat,substantially as and for the purpose set forth.

3. The block H, having holes h therein, ways to permit longitudinalmotion thereof, and a lever for transmitting the movements of said blockto the feed-slide of a cornplanter, in combination with the hooked rodsR R, adapted to be intermittently reciprocated, the T-piece N, pivotedto a bearing-head projecting from said ways, eyes a, at the ends ofthecross-arms of said T-piece, through which pass said rods, and the linksr, attached by the eyes 7 n and prongs n to the end of the arm N, andsecured at their other ends to said rods by means of their doubleshoulders Wand slots R in said rods, as and for the purpose specified.

4. In a check -rowing device of the kind herein described, the ways J,bearing-head K, notches L L, and ridges K, in combination with theT-piece N, projection m, lug m, bolt and nut m and spring m as setforth.

In testimony that I claim the foregoing invention I have hereunto set myhand this 29th day of September, 1884:.

' JAMES G. GIBSON.

Witnesses:

A. B. UPHAM, A. KEITHLEY.

